RDZANEK WP, RDZANEK WJ, PIECZONKA D. The Acoustic Impedance of a Vibrating Annular Piston Located on a Flat Rigid Baffle Around a Semi-Infinite Circular Rigid Cylinder. Arch. Acoust. 2012;37(4):411–422. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/70